Frost dates in Sandstone, MN
The average last spring frost in Sandstone is around May 10 and the first fall frost is around September 30. That gives Sandstone an average growing season of about 143 days.
Last spring frost
| Early (10% chance after) | April 28 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 13 |
|---|---|
| Average (50%) | September 30 |
| Late (90% chance before) | October 12 |